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<h1><a href="aiplatform_v1beta1.html">Vertex AI API</a> . <a href="aiplatform_v1beta1.projects.html">projects</a> . <a href="aiplatform_v1beta1.projects.locations.html">locations</a> . <a href="aiplatform_v1beta1.projects.locations.metadataStores.html">metadataStores</a> . <a href="aiplatform_v1beta1.projects.locations.metadataStores.contexts.html">contexts</a></h1>
<h2>Instance Methods</h2>
<p class="toc_element">
  <code><a href="aiplatform_v1beta1.projects.locations.metadataStores.contexts.operations.html">operations()</a></code>
</p>
<p class="firstline">Returns the operations Resource.</p>

<p class="toc_element">
  <code><a href="#addContextArtifactsAndExecutions">addContextArtifactsAndExecutions(context, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Adds a set of Artifacts and Executions to a Context. If any of the Artifacts or Executions have already been added to a Context, they are simply skipped.</p>
<p class="toc_element">
  <code><a href="#addContextChildren">addContextChildren(context, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Adds a set of Contexts as children to a parent Context. If any of the child Contexts have already been added to the parent Context, they are simply skipped. If this call would create a cycle or cause any Context to have more than 10 parents, the request will fail with an INVALID_ARGUMENT error.</p>
<p class="toc_element">
  <code><a href="#close">close()</a></code></p>
<p class="firstline">Close httplib2 connections.</p>
<p class="toc_element">
  <code><a href="#create">create(parent, body=None, contextId=None, x__xgafv=None)</a></code></p>
<p class="firstline">Creates a Context associated with a MetadataStore.</p>
<p class="toc_element">
  <code><a href="#delete">delete(name, etag=None, force=None, x__xgafv=None)</a></code></p>
<p class="firstline">Deletes a stored Context.</p>
<p class="toc_element">
  <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
<p class="firstline">Retrieves a specific Context.</p>
<p class="toc_element">
  <code><a href="#list">list(parent, filter=None, orderBy=None, pageSize=None, pageToken=None, x__xgafv=None)</a></code></p>
<p class="firstline">Lists Contexts on the MetadataStore.</p>
<p class="toc_element">
  <code><a href="#list_next">list_next()</a></code></p>
<p class="firstline">Retrieves the next page of results.</p>
<p class="toc_element">
  <code><a href="#patch">patch(name, allowMissing=None, body=None, updateMask=None, x__xgafv=None)</a></code></p>
<p class="firstline">Updates a stored Context.</p>
<p class="toc_element">
  <code><a href="#purge">purge(parent, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Purges Contexts.</p>
<p class="toc_element">
  <code><a href="#queryContextLineageSubgraph">queryContextLineageSubgraph(context, x__xgafv=None)</a></code></p>
<p class="firstline">Retrieves Artifacts and Executions within the specified Context, connected by Event edges and returned as a LineageSubgraph.</p>
<p class="toc_element">
  <code><a href="#removeContextChildren">removeContextChildren(context, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Remove a set of children contexts from a parent Context. If any of the child Contexts were NOT added to the parent Context, they are simply skipped.</p>
<h3>Method Details</h3>
<div class="method">
    <code class="details" id="addContextArtifactsAndExecutions">addContextArtifactsAndExecutions(context, body=None, x__xgafv=None)</code>
  <pre>Adds a set of Artifacts and Executions to a Context. If any of the Artifacts or Executions have already been added to a Context, they are simply skipped.

Args:
  context: string, Required. The resource name of the Context that the Artifacts and Executions belong to. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}` (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for MetadataService.AddContextArtifactsAndExecutions.
  &quot;artifacts&quot;: [ # The resource names of the Artifacts to attribute to the Context. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/artifacts/{artifact}`
    &quot;A String&quot;,
  ],
  &quot;executions&quot;: [ # The resource names of the Executions to associate with the Context. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/executions/{execution}`
    &quot;A String&quot;,
  ],
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Response message for MetadataService.AddContextArtifactsAndExecutions.
}</pre>
</div>

<div class="method">
    <code class="details" id="addContextChildren">addContextChildren(context, body=None, x__xgafv=None)</code>
  <pre>Adds a set of Contexts as children to a parent Context. If any of the child Contexts have already been added to the parent Context, they are simply skipped. If this call would create a cycle or cause any Context to have more than 10 parents, the request will fail with an INVALID_ARGUMENT error.

Args:
  context: string, Required. The resource name of the parent Context. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}` (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for MetadataService.AddContextChildren.
  &quot;childContexts&quot;: [ # The resource names of the child Contexts.
    &quot;A String&quot;,
  ],
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Response message for MetadataService.AddContextChildren.
}</pre>
</div>

<div class="method">
    <code class="details" id="close">close()</code>
  <pre>Close httplib2 connections.</pre>
</div>

<div class="method">
    <code class="details" id="create">create(parent, body=None, contextId=None, x__xgafv=None)</code>
  <pre>Creates a Context associated with a MetadataStore.

Args:
  parent: string, Required. The resource name of the MetadataStore where the Context should be created. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}` (required)
  body: object, The request body.
    The object takes the form of:

{ # Instance of a general context.
  &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was created.
  &quot;description&quot;: &quot;A String&quot;, # Description of the Context
  &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Context. May be up to 128 Unicode characters.
  &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
  &quot;labels&quot;: { # The labels with user-defined metadata to organize your Contexts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Context (System labels are excluded).
    &quot;a_key&quot;: &quot;A String&quot;,
  },
  &quot;metadata&quot;: { # Properties of the Context. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
  },
  &quot;name&quot;: &quot;A String&quot;, # Immutable. The resource name of the Context.
  &quot;parentContexts&quot;: [ # Output only. A list of resource names of Contexts that are parents of this Context. A Context may have at most 10 parent_contexts.
    &quot;A String&quot;,
  ],
  &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was last updated.
}

  contextId: string, The {context} portion of the resource name with the format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}`. If not provided, the Context&#x27;s ID will be a UUID generated by the service. Must be 4-128 characters in length. Valid characters are `/a-z-/`. Must be unique across all Contexts in the parent MetadataStore. (Otherwise the request will fail with ALREADY_EXISTS, or PERMISSION_DENIED if the caller can&#x27;t view the preexisting Context.)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Instance of a general context.
  &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was created.
  &quot;description&quot;: &quot;A String&quot;, # Description of the Context
  &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Context. May be up to 128 Unicode characters.
  &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
  &quot;labels&quot;: { # The labels with user-defined metadata to organize your Contexts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Context (System labels are excluded).
    &quot;a_key&quot;: &quot;A String&quot;,
  },
  &quot;metadata&quot;: { # Properties of the Context. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
  },
  &quot;name&quot;: &quot;A String&quot;, # Immutable. The resource name of the Context.
  &quot;parentContexts&quot;: [ # Output only. A list of resource names of Contexts that are parents of this Context. A Context may have at most 10 parent_contexts.
    &quot;A String&quot;,
  ],
  &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was last updated.
}</pre>
</div>

<div class="method">
    <code class="details" id="delete">delete(name, etag=None, force=None, x__xgafv=None)</code>
  <pre>Deletes a stored Context.

Args:
  name: string, Required. The resource name of the Context to delete. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}` (required)
  etag: string, Optional. The etag of the Context to delete. If this is provided, it must match the server&#x27;s etag. Otherwise, the request will fail with a FAILED_PRECONDITION.
  force: boolean, The force deletion semantics is still undefined. Users should not use this field.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # This resource represents a long-running operation that is the result of a network API call.
  &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
  &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # The error result of the operation in case of failure or cancellation.
    &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
    &quot;details&quot;: [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
      {
        &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
      },
    ],
    &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
  },
  &quot;metadata&quot;: { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
  },
  &quot;name&quot;: &quot;A String&quot;, # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the `name` should be a resource name ending with `operations/{unique_id}`.
  &quot;response&quot;: { # The normal, successful response of the operation. If the original method returns no data on success, such as `Delete`, the response is `google.protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`, the response should be the resource. For other methods, the response should have the type `XxxResponse`, where `Xxx` is the original method name. For example, if the original method name is `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
  },
}</pre>
</div>

<div class="method">
    <code class="details" id="get">get(name, x__xgafv=None)</code>
  <pre>Retrieves a specific Context.

Args:
  name: string, Required. The resource name of the Context to retrieve. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}` (required)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Instance of a general context.
  &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was created.
  &quot;description&quot;: &quot;A String&quot;, # Description of the Context
  &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Context. May be up to 128 Unicode characters.
  &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
  &quot;labels&quot;: { # The labels with user-defined metadata to organize your Contexts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Context (System labels are excluded).
    &quot;a_key&quot;: &quot;A String&quot;,
  },
  &quot;metadata&quot;: { # Properties of the Context. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
  },
  &quot;name&quot;: &quot;A String&quot;, # Immutable. The resource name of the Context.
  &quot;parentContexts&quot;: [ # Output only. A list of resource names of Contexts that are parents of this Context. A Context may have at most 10 parent_contexts.
    &quot;A String&quot;,
  ],
  &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was last updated.
}</pre>
</div>

<div class="method">
    <code class="details" id="list">list(parent, filter=None, orderBy=None, pageSize=None, pageToken=None, x__xgafv=None)</code>
  <pre>Lists Contexts on the MetadataStore.

Args:
  parent: string, Required. The MetadataStore whose Contexts should be listed. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}` (required)
  filter: string, Filter specifying the boolean condition for the Contexts to satisfy in order to be part of the result set. The syntax to define filter query is based on https://google.aip.dev/160. Following are the supported set of filters: * **Attribute filtering**: For example: `display_name = &quot;test&quot;`. Supported fields include: `name`, `display_name`, `schema_title`, `create_time`, and `update_time`. Time fields, such as `create_time` and `update_time`, require values specified in RFC-3339 format. For example: `create_time = &quot;2020-11-19T11:30:00-04:00&quot;`. * **Metadata field**: To filter on metadata fields use traversal operation as follows: `metadata..`. For example: `metadata.field_1.number_value = 10.0`. In case the field name contains special characters (such as colon), one can embed it inside double quote. For example: `metadata.&quot;field:1&quot;.number_value = 10.0` * **Parent Child filtering**: To filter Contexts based on parent-child relationship use the HAS operator as follows: ``` parent_contexts: &quot;projects//locations//metadataStores//contexts/&quot; child_contexts: &quot;projects//locations//metadataStores//contexts/&quot; ``` Each of the above supported filters can be combined together using logical operators (`AND` &amp; `OR`). Maximum nested expression depth allowed is 5. For example: `display_name = &quot;test&quot; AND metadata.field1.bool_value = true`.
  orderBy: string, How the list of messages is ordered. Specify the values to order by and an ordering operation. The default sorting order is ascending. To specify descending order for a field, users append a &quot; desc&quot; suffix; for example: &quot;foo desc, bar&quot;. Subfields are specified with a `.` character, such as foo.bar. see https://google.aip.dev/132#ordering for more details.
  pageSize: integer, The maximum number of Contexts to return. The service may return fewer. Must be in range 1-100, inclusive. Defaults to 100.
  pageToken: string, A page token, received from a previous MetadataService.ListContexts call. Provide this to retrieve the subsequent page. When paginating, all other provided parameters must match the call that provided the page token. (Otherwise the request will fail with INVALID_ARGUMENT error.)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Response message for MetadataService.ListContexts.
  &quot;contexts&quot;: [ # The Contexts retrieved from the MetadataStore.
    { # Instance of a general context.
      &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was created.
      &quot;description&quot;: &quot;A String&quot;, # Description of the Context
      &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Context. May be up to 128 Unicode characters.
      &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
      &quot;labels&quot;: { # The labels with user-defined metadata to organize your Contexts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Context (System labels are excluded).
        &quot;a_key&quot;: &quot;A String&quot;,
      },
      &quot;metadata&quot;: { # Properties of the Context. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
        &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
      },
      &quot;name&quot;: &quot;A String&quot;, # Immutable. The resource name of the Context.
      &quot;parentContexts&quot;: [ # Output only. A list of resource names of Contexts that are parents of this Context. A Context may have at most 10 parent_contexts.
        &quot;A String&quot;,
      ],
      &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
      &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
      &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was last updated.
    },
  ],
  &quot;nextPageToken&quot;: &quot;A String&quot;, # A token, which can be sent as ListContextsRequest.page_token to retrieve the next page. If this field is not populated, there are no subsequent pages.
}</pre>
</div>

<div class="method">
    <code class="details" id="list_next">list_next()</code>
  <pre>Retrieves the next page of results.

        Args:
          previous_request: The request for the previous page. (required)
          previous_response: The response from the request for the previous page. (required)

        Returns:
          A request object that you can call &#x27;execute()&#x27; on to request the next
          page. Returns None if there are no more items in the collection.
        </pre>
</div>

<div class="method">
    <code class="details" id="patch">patch(name, allowMissing=None, body=None, updateMask=None, x__xgafv=None)</code>
  <pre>Updates a stored Context.

Args:
  name: string, Immutable. The resource name of the Context. (required)
  body: object, The request body.
    The object takes the form of:

{ # Instance of a general context.
  &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was created.
  &quot;description&quot;: &quot;A String&quot;, # Description of the Context
  &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Context. May be up to 128 Unicode characters.
  &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
  &quot;labels&quot;: { # The labels with user-defined metadata to organize your Contexts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Context (System labels are excluded).
    &quot;a_key&quot;: &quot;A String&quot;,
  },
  &quot;metadata&quot;: { # Properties of the Context. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
  },
  &quot;name&quot;: &quot;A String&quot;, # Immutable. The resource name of the Context.
  &quot;parentContexts&quot;: [ # Output only. A list of resource names of Contexts that are parents of this Context. A Context may have at most 10 parent_contexts.
    &quot;A String&quot;,
  ],
  &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was last updated.
}

  allowMissing: boolean, If set to true, and the Context is not found, a new Context is created.
  updateMask: string, Optional. A FieldMask indicating which fields should be updated.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Instance of a general context.
  &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was created.
  &quot;description&quot;: &quot;A String&quot;, # Description of the Context
  &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Context. May be up to 128 Unicode characters.
  &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
  &quot;labels&quot;: { # The labels with user-defined metadata to organize your Contexts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Context (System labels are excluded).
    &quot;a_key&quot;: &quot;A String&quot;,
  },
  &quot;metadata&quot;: { # Properties of the Context. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
  },
  &quot;name&quot;: &quot;A String&quot;, # Immutable. The resource name of the Context.
  &quot;parentContexts&quot;: [ # Output only. A list of resource names of Contexts that are parents of this Context. A Context may have at most 10 parent_contexts.
    &quot;A String&quot;,
  ],
  &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Context was last updated.
}</pre>
</div>

<div class="method">
    <code class="details" id="purge">purge(parent, body=None, x__xgafv=None)</code>
  <pre>Purges Contexts.

Args:
  parent: string, Required. The metadata store to purge Contexts from. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}` (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for MetadataService.PurgeContexts.
  &quot;filter&quot;: &quot;A String&quot;, # Required. A required filter matching the Contexts to be purged. E.g., `update_time &lt;= 2020-11-19T11:30:00-04:00`.
  &quot;force&quot;: True or False, # Optional. Flag to indicate to actually perform the purge. If `force` is set to false, the method will return a sample of Context names that would be deleted.
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # This resource represents a long-running operation that is the result of a network API call.
  &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
  &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # The error result of the operation in case of failure or cancellation.
    &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
    &quot;details&quot;: [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
      {
        &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
      },
    ],
    &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
  },
  &quot;metadata&quot;: { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
  },
  &quot;name&quot;: &quot;A String&quot;, # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the `name` should be a resource name ending with `operations/{unique_id}`.
  &quot;response&quot;: { # The normal, successful response of the operation. If the original method returns no data on success, such as `Delete`, the response is `google.protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`, the response should be the resource. For other methods, the response should have the type `XxxResponse`, where `Xxx` is the original method name. For example, if the original method name is `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
    &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
  },
}</pre>
</div>

<div class="method">
    <code class="details" id="queryContextLineageSubgraph">queryContextLineageSubgraph(context, x__xgafv=None)</code>
  <pre>Retrieves Artifacts and Executions within the specified Context, connected by Event edges and returned as a LineageSubgraph.

Args:
  context: string, Required. The resource name of the Context whose Artifacts and Executions should be retrieved as a LineageSubgraph. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}` The request may error with FAILED_PRECONDITION if the number of Artifacts, the number of Executions, or the number of Events that would be returned for the Context exceeds 1000. (required)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # A subgraph of the overall lineage graph. Event edges connect Artifact and Execution nodes.
  &quot;artifacts&quot;: [ # The Artifact nodes in the subgraph.
    { # Instance of a general artifact.
      &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Artifact was created.
      &quot;description&quot;: &quot;A String&quot;, # Description of the Artifact
      &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Artifact. May be up to 128 Unicode characters.
      &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
      &quot;labels&quot;: { # The labels with user-defined metadata to organize your Artifacts. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Artifact (System labels are excluded).
        &quot;a_key&quot;: &quot;A String&quot;,
      },
      &quot;metadata&quot;: { # Properties of the Artifact. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
        &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
      },
      &quot;name&quot;: &quot;A String&quot;, # Output only. The resource name of the Artifact.
      &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
      &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in schema_name to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
      &quot;state&quot;: &quot;A String&quot;, # The state of this Artifact. This is a property of the Artifact, and does not imply or capture any ongoing process. This property is managed by clients (such as Vertex AI Pipelines), and the system does not prescribe or check the validity of state transitions.
      &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Artifact was last updated.
      &quot;uri&quot;: &quot;A String&quot;, # The uniform resource identifier of the artifact file. May be empty if there is no actual artifact file.
    },
  ],
  &quot;events&quot;: [ # The Event edges between Artifacts and Executions in the subgraph.
    { # An edge describing the relationship between an Artifact and an Execution in a lineage graph.
      &quot;artifact&quot;: &quot;A String&quot;, # Required. The relative resource name of the Artifact in the Event.
      &quot;eventTime&quot;: &quot;A String&quot;, # Output only. Time the Event occurred.
      &quot;execution&quot;: &quot;A String&quot;, # Output only. The relative resource name of the Execution in the Event.
      &quot;labels&quot;: { # The labels with user-defined metadata to annotate Events. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Event (System labels are excluded). See https://goo.gl/xmQnxf for more information and examples of labels. System reserved label keys are prefixed with &quot;aiplatform.googleapis.com/&quot; and are immutable.
        &quot;a_key&quot;: &quot;A String&quot;,
      },
      &quot;type&quot;: &quot;A String&quot;, # Required. The type of the Event.
    },
  ],
  &quot;executions&quot;: [ # The Execution nodes in the subgraph.
    { # Instance of a general execution.
      &quot;createTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Execution was created.
      &quot;description&quot;: &quot;A String&quot;, # Description of the Execution
      &quot;displayName&quot;: &quot;A String&quot;, # User provided display name of the Execution. May be up to 128 Unicode characters.
      &quot;etag&quot;: &quot;A String&quot;, # An eTag used to perform consistent read-modify-write updates. If not set, a blind &quot;overwrite&quot; update happens.
      &quot;labels&quot;: { # The labels with user-defined metadata to organize your Executions. Label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one Execution (System labels are excluded).
        &quot;a_key&quot;: &quot;A String&quot;,
      },
      &quot;metadata&quot;: { # Properties of the Execution. Top level metadata keys&#x27; heading and trailing spaces will be trimmed. The size of this field should not exceed 200KB.
        &quot;a_key&quot;: &quot;&quot;, # Properties of the object.
      },
      &quot;name&quot;: &quot;A String&quot;, # Output only. The resource name of the Execution.
      &quot;schemaTitle&quot;: &quot;A String&quot;, # The title of the schema describing the metadata. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
      &quot;schemaVersion&quot;: &quot;A String&quot;, # The version of the schema in `schema_title` to use. Schema title and version is expected to be registered in earlier Create Schema calls. And both are used together as unique identifiers to identify schemas within the local metadata store.
      &quot;state&quot;: &quot;A String&quot;, # The state of this Execution. This is a property of the Execution, and does not imply or capture any ongoing process. This property is managed by clients (such as Vertex AI Pipelines) and the system does not prescribe or check the validity of state transitions.
      &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Timestamp when this Execution was last updated.
    },
  ],
}</pre>
</div>

<div class="method">
    <code class="details" id="removeContextChildren">removeContextChildren(context, body=None, x__xgafv=None)</code>
  <pre>Remove a set of children contexts from a parent Context. If any of the child Contexts were NOT added to the parent Context, they are simply skipped.

Args:
  context: string, Required. The resource name of the parent Context. Format: `projects/{project}/locations/{location}/metadataStores/{metadatastore}/contexts/{context}` (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for MetadataService.DeleteContextChildrenRequest.
  &quot;childContexts&quot;: [ # The resource names of the child Contexts.
    &quot;A String&quot;,
  ],
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Response message for MetadataService.RemoveContextChildren.
}</pre>
</div>

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